Laser therapy unit



FIG. 1 is a front elevational view of a laser therapy unit, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a side elevational view thereof, opposite that shown in FIG. 3;

FIG. 5 is a front perspective view thereof; and

FIG. 6 is a top plan view thereof. 

The ornamental design for a laser therapy unit, as shown. 